US 7,116,023 B2 · End cap for interconnecting winding coils of a segmented stator to reduce phase-on-phase conditions and associated methods

Abstract

A stator for an electromagnetic machine includes a plurality of discrete and individually wound stator segments having end caps positioned on the segments. The end caps have legs for positioning the end cap on the segments with an interference fit. The end caps have angled surfaces to facilitate winding of wire on the segments. The end caps have male and female couplings that mate together to couple adjacent segments together. The end caps have fingers and slots for aligning the segments on substantially the same plane. The end caps have wire isolation features, including hooks, shelves and ledges, for separating the interconnect wires routed on the stator to electrically interconnect the segments. The segments include scalloped contours on their outer edges for draining oil, and the end caps have passages for draining oil.

Claims30

Dependent claims

An end cap for a segment of a segmented stator in an electromagnetic machine, the machine having a plurality of interconnect wires and a central axis, the segment having a yoke portion and having a tooth portion with a winding coil wound thereon, the end cap comprising:

a body portion positioned adjacent the yoke portion and having an inboard side;
an inboard wall positioned adjacent the tooth portion such that the winding coil wound on the tooth portion is at least partially positioned between the inboard wall and the inboard side of the body portion;
and
at least one router positioned on the end cap for routing interconnect wires between portions of the stator, the at least one router including a first ledge and a second ledge spaced from the first ledge in the axial direction for separating at least two interconnect wires in the axial direction when the at least two interconnect wires are routed adjacent one another on the at least one router.

1 more element

Dependencies are inferred from the claim text.

End cap for interconnecting winding coils of a segmented stator to reduce phase-on-phase conditions and associated methods

Life of this patent

End cap for interconnecting winding coils of a segmented stator to reduce phase-on-phase conditions and associated methods

Life of this patent

Abstract

Claims30